A starting block for track and field training

Abstract

This utility model belongs to the field of sports equipment technology, and specifically relates to a starting device for track and field training. It includes a base and two support plates on the base. Foot pedals are mounted on the outer sides of both support plates. The support plates and foot pedals are connected via an adjustment assembly. The adjustment assembly includes an adjustment frame on the support plates. Sliding grooves are formed on the left and right side walls of the support plates, and sliding plates are installed within each groove. Several toothed grooves are formed on the inner side of the support plates above the sliding grooves. A fixing plate is installed within the adjustment frame, and several gear teeth mesh with the toothed grooves on the fixing plate. A pressure plate is mounted on the fixing plate, and the pressure plate is rotatably connected to the adjustment frame via a rotating rod. A torsion spring is independently mounted on the rotating rod. The side walls of the adjustment frame are connected to the foot pedals via telescopic components. This utility model allows for fine-tuning of the front-to-back and left-to-right distance between the two foot pedals, improving the adaptability of the starting device and better meeting the needs of athletes of different body types.

Description

Technical Field

[0001] This utility model belongs to the field of sports equipment technology, and in particular relates to a starting device for track and field training. Background Technology

[0002] Starting blocks are essential training equipment for track and field events such as sprinting and hurdles. Their function is not limited to providing a stable starting posture, but also helps athletes optimize their starting posture, improve explosive power and reduce the risk of injury. Traditional starting blocks usually consist of a base with a fixed angle and foot pedals. By adjusting the distance between the two foot pedals and the tilt angle of the foot pedals, they are suitable for athlete training.

[0003] However, the current starting blocks do not have enough precision in adjusting the front-to-back distance between the two foot pedals, and it takes a lot of time to adjust to the optimal position. They also cannot adjust the left-to-right distance between the two foot pedals. If the distance is too narrow, the athlete's hip and knee joints cannot fully extend, resulting in insufficient push-off force and slower acceleration at the start. If the distance is too wide, the legs may abduct too much, affecting the straightness of the push-off and making it difficult to adapt to athletes of different body types. Utility Model Content

[0004] The purpose of this invention is to provide a starting device for track and field training that can better adjust the front-to-back and left-to-right distance between the two foot pedals, thereby improving the adaptability of the starting device.

[0005] The track and field training starting device includes a base and two support plates on the base. Adjustable foot pedals with adjustable tilt angles are provided on the outer sides of both support plates. The support plates and foot pedals are connected by an adjustment assembly for adjusting the lateral and longitudinal distances of the two foot pedals. The adjustment assembly includes an adjustment frame on the support plate. Sliding grooves are provided on the left and right side walls of the support plates. Sliding plates, which are slidably engaged with and fixed to the adjustment frame, are provided within each sliding groove. Several toothed grooves are provided on the inner side of the support plate above the sliding grooves. A fixed plate is provided within the adjustment frame. Several gear teeth that mesh with the toothed grooves are provided on the fixed plate. A pressure plate is provided on the fixed plate. The pressure plate is rotatably connected to the adjustment frame via a rotating rod. A torsion spring is independently mounted on the rotating rod. The side walls of the adjustment frame are connected to the foot pedals via telescopic components.

[0006] Furthermore, the telescopic component includes a fixed cylinder fixed to the side wall of the adjustment frame, a connecting plate independently installed inside the fixed cylinder, a limit groove is opened on the inner wall of the fixed cylinder, a limit block is provided in the limit groove and is slidably engaged with and fixed to the connecting plate, and a threaded hole is opened at the top of the fixed cylinder, a screw is threaded into the threaded hole, and the tightening end of the screw abuts against the top of the connecting plate.

[0007] Furthermore, the outer wall of the support plate is provided with scale lines.

[0008] Furthermore, the pressure plate is inclined and extends out of the adjustment frame.

[0009] Furthermore, the adjustment frame and the sliding plate are integrally formed.

[0010] Furthermore, the fixing plate and the pressure plate are integrally formed structures.

[0011] Compared with the prior art, the present invention has the following beneficial effects: This invention uses a pressing plate to rotate a fixed plate. Several gear teeth on the fixed plate move away from several tooth grooves on the side wall of the support plate. After the moving adjustment frame moves the foot pedal to the appropriate position, the pressing plate is released. Under the torsional force of the torsion spring, the rotating rod rotates, which in turn rotates the pressing plate and the fixed plate. The gear teeth mesh with the tooth grooves again, fixing the position of the foot pedal. Then, the lateral distance between the two foot pedals can be finely adjusted by the telescopic component. This allows for better adjustment of the front-to-back and lateral distances between the two foot pedals, improving the adaptability of the starting device and making it more suitable for athletes of different body types. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a perspective view of the present utility model; Figure 3 This is an exploded view of the present invention; The components in the diagram are named as follows: 1. Base; 2. Sliding plate; 3. Fixed cylinder; 4. Connecting plate; 5. Foot pedal; 6. Screw; 7. Adjusting frame; 8. Support plate; 9. Gear teeth; 10. Rotating rod; 11. Torsion spring; 12. Fixed plate; 13. Pressure plate; 14. Tooth groove; 15. Limiting block. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0014] Example This embodiment describes a starting block for track and field training, such as... Figure 1 , Figure 2 and Figure 3As shown, the device includes a base 1 and two support plates 8 on the base 1. Each support plate 8 has an adjustable foot pedal 5 on its outer side. The support plates 8 and foot pedals 5 are connected by an adjustment assembly for adjusting the left-right and front-back distances of the two foot pedals 5. The adjustment assembly includes an adjustment frame 7 on the support plate 8. Sliding grooves are provided on the left and right side walls of the support plate 8. Sliding plates 2, which are slidably engaged with and fixed to the adjustment frame 7, are provided within each sliding groove. Several toothed grooves 14 are provided on the inner side of the support plate 8 above the sliding grooves. A fixed plate 12 is provided inside the adjustment frame 7. Several gear teeth 9 mesh with the toothed grooves 14 are provided on the fixed plate 12. A pressure plate 13 is provided on the fixed plate 12. The pressure plate 13 is rotatably connected to the adjustment frame 7 via a rotating rod 10. A torsion spring 11 is independently mounted on the rotating rod 10. The side wall of the adjustment frame 7 is connected to the foot pedals 5 via a telescopic component. Two support plates 8 are welded or glued to the top of the base 1. A stabilizing plate is fixed to the rear side of the base 1 to increase the contact with the ground and improve the stability of the base 1. A handle is welded to the rear side wall of the stabilizing plate for easy access. The support plates 8 are connected to the foot pedal 5 via an adjustment assembly, which includes a U-shaped adjustment frame 7. Sliding plates 2 are connected to the bottom of both side walls of the adjustment frame 7. Sliding grooves are provided on both side walls of the support plate 8. The two sliding plates 2 slide in the sliding grooves, allowing the adjustment frame 7 to move freely on the support plate 8. A sliding groove is also provided on the base 1, with one sliding plate 2 moving in the sliding groove on the support plate 8 and the other sliding plate 2 moving in the sliding groove on the base 1. When the adjustment frame 7 is moved, it moves on the support plate 8 and the base 1, enhancing the stability of the connection between the base 1 and the support plate 8. The inner... The side wall is provided with several toothed grooves 14. A fixed plate 12 is provided inside the adjusting frame 7. The fixed plate 12 is located between the side wall of the adjusting frame 7 and the support plate 8. Several gear teeth 9 that mesh with the toothed grooves 14 are welded or glued to the side wall of the fixed plate 12. A pressure plate 13 is welded or glued to the fixed plate 12. Rotating rods 10 are welded or glued to the top and bottom of the pressure plate 13 for rotatable connection. The top of the upper rotating rod 10 is rotatably connected to the top of the adjusting frame 7 through a bearing. The bottom of the lower rotating rod 10 is rotatably connected to the top of the sliding plate 2 through a bearing. The fixed plate 12 and the pressure plate 13 are rotated inside the adjusting frame 7 through the bearing. Each of the two rotating rods 10 is independently fitted with a torsion spring 11. One end of the upper torsion spring 11 is welded to the top of the adjusting frame 7, and the other end is welded to the top of the pressure plate 13. One end of the lower torsion spring 11 is welded to the bottom of the pressure plate 13, and the other end is welded to the top of the sliding plate 2. The outer wall of the adjustment frame 7 is connected to the foot pedals 5 via a telescopic component. The telescopic component includes a telescopic rod with several pin holes. A pin is inserted into any of the pin holes and interlocks with them. The length of the telescopic rod is fixed by the pins. When the telescopic rod extends, the lateral distance between the two foot pedals 5 is widened. When the telescopic rod shortens, the lateral distance between the two foot pedals 5 is shortened. This allows for adjustment of the lateral distance between the two foot pedals 5 to better suit the needs of athletes of different body types. The appropriate width helps athletes maintain a stable center of gravity at the start, avoiding swaying due to being too narrow or limiting power efficiency due to being too wide. A reasonable distance allows the legs to be in the optimal power-generating posture, maximizing the explosive power of the quadriceps and gluteus maximus, and better assisting athletes in the start. The pedal 5 includes a U-shaped mounting frame with a pedal hinged to it. An adjustment plate is hinged to the back of the pedal. Several slots are provided on the two side walls of the mounting frame to engage with the adjustment plate. By rotating the adjustment plate, it can engage with any of the slots, thereby causing the pedal to rotate around the hinge and tilt. The tilt angle can be adjusted to better suit athletes of different body types. Furthermore, the pressure plate 13 is inclined and extends out of the adjusting frame 7. When the torsion spring 11 is in its natural state, the fixing plate 12 is in a vertical state, and the pressure plate 13 is in an inclined state. Several gear teeth 9 mesh with the tooth grooves 14. At this time, the position of the adjusting frame 7 is fixed. When it is necessary to adjust the position of the adjusting frame 7, one side of the pressure plate 13 extends out of the side wall of the adjusting frame 7. Pressing the pressure plate 13 extending out of the side wall of the adjusting frame 7 causes it to drive the rotating rod 10 to rotate within the adjusting frame 7 through the bearing. This causes the pressure plate 13 and the fixing plate 12 to rotate around the rotating rod 10. The torsion spring 11 twists and deforms, and the fixing plate 12 rotates from a vertical state to a horizontal state. In the tilted state, several gear teeth 9 on the fixed plate 12 move away from the tooth grooves 14, thereby moving the adjustment frame 7 to drive the pedals 5 to move and adjust the position of the pedals 5; after the position of the pedals 5 is determined, the pressure plate 13 is released, and the rotating rod 10 is driven to rotate under the torsional force of the torsion spring 11, thereby driving the pressure plate 13 and the fixed plate 12 to rotate. The fixed plate 12 rotates from the tilted state to the vertical state, and several gear teeth 9 mesh with several tooth grooves 14 again, thereby fixing the position of the adjustment frame 7 again to ensure that the position of the two pedals 5 is adapted to the needs of the athlete; like Figure 1 , Figure 2 and Figure 3As shown, the telescopic component also includes a fixed cylinder 3 fixed to the side wall of the adjusting frame 7. A connecting plate 4 is independently installed inside the fixed cylinder 3. A limiting groove is formed in the inner wall of the fixed cylinder 3, and a limiting block 15 is provided in the limiting groove and is slidably engaged with and fixed to the connecting plate 4. A threaded hole is formed at the top of the fixed cylinder 3, and a screw 6 is threaded into the threaded hole. The tightening end of the screw 6 abuts against the top of the connecting plate 4. The telescopic component also includes a fixed cylinder 3 welded or glued to the outer wall of the adjusting frame 7. A connecting plate 4 is independently installed inside the fixed cylinder 3. The connecting plate 4 is welded or glued to the side wall of the foot pedal 5. Two symmetrically distributed limiting grooves are formed in the inner wall of the fixed cylinder 3, and a limiting block is provided in each limiting groove and is slidably engaged with it. 15. The limiting block 15 is welded or glued to the side wall of the connecting plate 4. The top of the fixing cylinder 3 is threaded with a screw 6. When in use, the foot pedal 5 is moved to drive the connecting plate 4 to move inside the fixing cylinder 3. The connecting plate 4 drives the two limiting blocks 15 to move inside the limiting groove. When the foot pedal 5 moves to the appropriate position, the screw 6 is tightened so that the top end is pressed against the connecting plate 4 to fix the position of the connecting plate 4, thereby fixing the position of the foot pedal 5. The width gap between the two foot pedals 5 is finely adjusted to better adapt to the needs of the athlete. And through the action of the limiting groove and the limiting block 15, the connecting plate 4 is prevented from detaching from the fixing cylinder 3, ensuring the stability of the connection between the base 1 and the foot pedal 5. like Figure 2 and Figure 3 As shown, the outer wall of the support plate 8 is provided with scale lines; the outer wall of the support plate 8 is printed with scale lines, and the adjustment frame 7 moves on the support plate 8. By observing the scale line pointed to by the side wall of the adjustment frame 7, the data of the distance between the two pedals 5 used by the athlete can be understood, so that it can be adjusted to the scale line in the next training, shortening the time to adjust the distance between the two pedals 5, realizing fine adjustment between the pedals 5, and ensuring that the distance is the same each time, which is more conducive to the athlete's training; and the side wall of the connecting plate 4 can also be printed with scale lines. By using the connecting plate 4 to make the side wall of the fixed cylinder 3 point to the scale line on the connecting plate 4, the distance between the two pedals 5 can be finely adjusted. The fixed distance can ensure that the force angle is consistent each time, help the nervous system form a stable movement pattern, reduce the risk of movement deformation, and promote the symmetry of the athlete's two legs' force exertion, avoid compensatory movements caused by left and right differences, reduce the probability of sports injury, enhance coordination, and improve the starting explosive power; like Figure 1 , Figure 2 and Figure 3 As shown, the adjusting frame 7 and the sliding plate 2 are integrally formed structures; the integral forming of the adjusting frame 7 and the two sliding plates 2 facilitates production, improves overall strength, eliminates the risk of loosening at the connection, ensures uniform stress distribution during use, avoids deformation and displacement that may occur with split designs, effectively absorbs impact energy, and reduces ineffective vibration loss at the start; similarly, the fixing plate 12 and the pressure plate 13 are integrally formed structures, making the connection more robust; In actual use, the base 1 and the bottom of the two foot pedals 5 are in contact with the ground. When adjusting the front-to-back distance of the two foot pedals 5, press the pressure plate 13 to make the fixed plate 12 rotate within the adjustment frame 7. The rotating rod 10 rotates accordingly, and the torsion spring 11 deforms. Several gear teeth 9 on the fixed plate 12 move away from several tooth grooves 14 on the side wall of the support plate 8. Move the adjustment frame 7, and with the cooperation of the telescopic component, move the foot pedals 5 on the support plate 8. When the foot pedals 5 move to the appropriate position, release the pressure plate 13. Under the torsional force of the torsion spring 11, the rotating rod 10 rotates, which in turn drives the pressure plate 13 and the fixed plate 12 to rotate. The gear teeth 9 on the fixed plate 12 mesh with the tooth grooves 14 again, thereby fixing the position of the adjustment frame 7 and the foot pedals 5. This allows for better fine adjustment of the front-to-back distance of the two foot pedals 5. Then, the left-to-right distance between the two foot pedals 5 is finely adjusted through the telescopic component to better suit the needs of athletes of different body types and better assist athletes in training.

Claims

1. A starting block for track and field training, comprising a base (1) and two support plates (8) located on the base (1), wherein adjustable-angle foot pedals (5) are provided on the outer sides of both support plates (8), and the support plates (8) and foot pedals (5) are connected by adjustment components for adjusting the left-right distance and front-back distance of the two foot pedals (5), characterized in that: The adjustment assembly includes an adjustment frame (7) located on a support plate (8). Sliding grooves are provided on the left and right side walls of the support plate (8). Sliding plates (2) that slide with the sliding grooves and are fixed on the adjustment frame (7) are provided in the sliding grooves. Several toothed grooves (14) are provided on the inner side of the support plate (8) above the sliding grooves. A fixing plate (12) is provided inside the adjustment frame (7). Several gear teeth (9) that mesh with the toothed grooves (14) are provided on the fixing plate (12). A pressure plate (13) is provided on the fixing plate (12). The pressure plate (13) is rotatably connected to the adjustment frame (7) through a rotating rod (10). A torsion spring (11) is independently mounted on the rotating rod (10). The side wall of the adjustment frame (7) is connected to the foot pedal (5) through a telescopic component.

2. The starting block for track and field training according to claim 1, characterized in that: The telescopic component includes a fixed cylinder (3) fixed to the side wall of the adjusting frame (7), a connecting plate (4) is independently installed inside the fixed cylinder (3), a limiting groove is opened on the inner wall of the fixed cylinder (3), a limiting block (15) is provided in the limiting groove and is slidably fitted to and fixed on the connecting plate (4), a threaded hole is opened at the top of the fixed cylinder (3), a screw (6) is threaded inside the threaded hole, and the tightening end of the screw (6) is pressed against the top of the connecting plate (4).

3. The starting block for track and field training according to claim 1, characterized in that: The outer wall of the support plate (8) is provided with scale lines.

4. The starting block for track and field training according to claim 1, characterized in that: The pressure plate (13) is inclined and extends out of the adjustment frame (7).

5. The starting block for track and field training according to claim 1, characterized in that: The adjusting frame (7) and the sliding plate (2) are integrally formed.

6. The starting block for track and field training according to claim 1, characterized in that: The fixing plate (12) and the pressure plate (13) are integrally formed structures.

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